CLASS XII (2014-15) (Theory) Duration: 3 Hours Total Marks: 70 Unit No. Unit Name PERIODS MARKS (Theory + Practical) Th Pr Tot 1. Programming with Python 50 40 90 41 2. Object Oriented Programming with Python 42 36 78 24 3. Databases and SQL 20 20 40 15 4. Boolean Algebra 16 0 16 11 5. Communication Technologies 16 0 16 09 144 96 240 100 Unit 1: Programming with Python 28 Marks (50 Theory+40 Practical) Periods Review: Python covered in Class-XI Dictionaries: Concept of key-value pair, creating, initializing and accessing the elements in a dictionary, traversing, appending, updating and deleting elements. Dictionary functions & Methods: cmp, len, clear(), get(), has_key(), items(), keys(), update(), values() Tuples: Immutable concept, creating, intialising and accessing the elements in a tuple; tuple functions: cmp(), len(), max(), min(), tuple() Stacks and Queues with lists Data File: Opening and closing files, file object, access_modes, reading and writing a file read(), readline(), readlines(), write(), file positions (seek(), tell()), renaming and deleting a file. Unit 2: Object Oriented Programming with Python 14 Marks (42 Theory+36 Practical) Periods Concept of Object Oriented Programming: Data hiding, data encapsulation, class and object, polymorphism, inheritance, advantages of object oriented programming over earlier programming methodologies. Classes: Defining classes (attributes, methods), creating instance objects, accessing attributes and methods, using built in class attributes (dict, doc, name, module, bases), using init (), del () method and str ( ) in a class, private attributes (limited support), importance of "self" (acts as a pointer to current calling object) 189
Inheritance: Single and multiple inheritance- Overriding methods, using super() in derived class to invoke _init_() or overriden methods of parent class Unit 3: Databases and SQL 10 Marks (20 Theory+20 Practical) Periods Database Concepts: Relational data model: Concept of domain, tuple, relation, key, primary key, alternate key, candidate key. Structured Query Language: General Concepts: Advantages of using SQL, Data Definition Language and Data Manipulation Language; Data Types: NUMBER/DECIMAL, CHARACTER/VARCHAR/VARCHAR2, DATE; SQL COMMANDS: CREATE TABLE, DROP TABLE, ALTER TABLE, UPDATE.SET., INSERT, DELETE; SELECT, DISTINCT, FROM, WHERE, IN, BETWEEN, GROUPBY, HAVING, ORDERBY; SQL functions: SUM, AVG, COUNT, MAX AND MIN; Obtaining results (SELECT query) from 2 tables using equi-join, Cartesian product and Union Note: Implementation of the above mentioned commands could be done on any SQL supported software on one or two tables. Unit 4: Boolean Algebra 10 Marks (16 Theory) Periods Binary-valued quantities, boolean variable, boolean constant and boolean operators: AND, OR, NOT; truth tables; closure property, commutative law, associative law, identity law, inverse law, principle of duality, idem potent Law, distributive law, absorption law, involution law, DeMorgan's law and their applications; Obtaining Sum of Product (SOP) and Product of Sum (POS) form from the truth table, reducing boolean expression (SOP and POS) to its minimal form, Use of Karnaugh Map for minimization of Boolean expressions (up to 4 variables); Application of Boolean Logic: Digital electronic circuit design using basic Logic Gates (NOT, AND, OR, NAND, NOR) Use of Boolean operators (NOT, AND, OR) in SQL SELECT statements Use of Boolean operators (AND, OR) in search engine queries. Unit 5: Communication Technologies 8 Marks (16 Theory) Periods Evolution of Networking: ARPANET, Internet, Interspace Different ways of sending data across the network with reference to switching techniques (Circuit and Packet switching); Data Communication terminologies: Concept of channel, Bandwidth (Hz, KHz, MHz) and Data transfer rate (bps, kbps, Mbps, Gbps, Tbps); Transmission media: Twisted pair cable, coaxial cable, optical fiber, infrared, radio link, microwave link and satellite link; 190
Network devices: Modem, RJ45 connector, ethernet card, router, switch, gateway, wifi card; Network Topologies and types: Bus, Star, Tree, LAN, WAN, MAN; Network Security Concepts: Threats and prevention from Viruses, Worms, Trojan horse, Spams Use of cookies, protection using firewall; India IT Act, Cyber Law, Cyber Crimes, IPR issues, Hacking; Introduction To Web services: WWW, Hyper Text Markup Language (HTML), extensible Markup Language (XML); Hyper Text Transfer Protocol (HTTP); Domain Names; URL; Website, Web browser, Web Servers; Web Hosting, Web Scripting - Client side (VB Script, Java Script, PHP) and Server side (ASP, JSP, PHP), Web 2.0 (for social networking) CLASS XII (2014-15) (PRACTICALS) Duration: 3 Hours Total Marks: 30 1. Programming in Python 10 One programming problem in Python to be developed and tested in Computer during the examination. Marks are allotted on the basis of following: Logic : 5 Marks Documentation/indentation : 2 Marks Output presentation : 3 Marks Notes: The types of problems to be given will be of application type from the following topics: String Lists/Tuples Dictionary File Operations 2. SQL Commands 05 Five Query questions based on a particular table/reaction to be tested practically on computer during the examination. The command along with the result must be written in the answer sheet. 3. Project Work 05 The project has to be developed in Python language with Object Oriented Technology. (The project is required to be developed in a group of 2-4 students.) Presentation on the computer Project report (listing, sample, outputs, documentation Viva 4. Practical File 05 Must have minimum 20 programs from the following topics: Lists (general, stack, queue) 191
Dictionary Tuple File Handling Programs based on Object Oriented Concepts SQL commands along with the output based on any table/relation 5. Viva Voce 05 Viva will be asked from syllabus covered in class XII and the project developed by students. GUIDELINES FOR PROJECTS (Class XI and XII) 1. Preamble 1.1 The academic course in Computer Science includes one Project in each year. The Purpose behind this is to consolidate the concepts and practices imparted during the course and to serve as a record of competence. 1.2 A group of 2-4 students as team may be allowed to work on one project. 2. Project content 2.1 Project for class XI can be selected from the topics mentioned in the syllabus or domains on the similar lines. 2.2 Project for class XII should ensure the coverage of following areas of curriculum: a. Problem Solving b. Object Oriented Programming in Python c. File Handling Theme of the project can be: Any Scientific or a fairly complex algorithmic situation Quizzes/Games Tutor/Computer Aided Learning Systems 2.3 The aim of the project is to highlight the abilities of algorithmic formulation, modular programming, systematic documentation and other associated aspects of Software Development. 2.4 The assessment would be through the project demonstration and the Project Report, which should portray programming style, structured design, minimum coupling, high cohesion, good documentation of the code to ensure readability and ease of maintenance. Prescribed Books: Computer Fundamentals and Boolean Algebra 1. Rajaraman, FUNDAMENTALS OF COMPUTERS 4th Edition, Prentice Hall of India. 2. Peter Norton, INTRODUCTION TO COMPUTER 4th Edition, Tata McGraw Hill 3. Thomas C. Bartee, DIGITAL COMPUTER FUNDAMENTALS, McGraw Hill International. Problem Solving and Programming in Python 1. Allen B. Downey, Think Python, O'Reilly 2. John Zelle, Python Programming: An Introduction to Computer Science, Franklin Beedle & Associates 192
Database Management System and SQL 1. C.J. Date, DATABASE PRIMER, Adison Wesley. Computer Network 1. A.S. Tanenbaum, Computer Network 4th Edition, Prentice Hall of India P. Ltd. 2. Williams Stalling, Data Communication and Networks 5th Edition, Prentice Hall of India P. Ltd. 3. Hancock, Network Concept and Architectures, BPB Publications. COMPUTER SCIENCE (CODE - 083) QUESTION PAPER DESIGN CLASS - XII (2014 15) Time 3 Hours Max. Marks: 70 S. Typology of Questions Very Short Short Short Long Total % No. Answer Answer-I Answer -II Answer Marks Weightage (VSA) (SA-I) (SA-II) (L.A.) (1 mark) (2 marks) (3 marks) (4 marks) 01 Knowledge Based 3 3 --- --- 9 13% 02 Conceptual 1 2 2 --- 11 15% Understanding 03 Application Based --- 3 2 1 16 23% and Inferential type 04 Reasoning Based --- 1 2 2 16 23% 05 Skill Based --- 2 2 2 18 26% Total 4 11 8 5 70 100% 1. No chapter wise weightage. Care to be taken to cover all the chapters. 2. The above template is only a sample. Suitable internal variations may be made for generating similar templates keeping the overall weightage to different form of questions and typology of questions same. 193